20078+3055 COU  31

Coord 2000	20078+3055		Discov num	COU  31		Comp			Coord arcsec 2000	20 07 52.21 +30 54 11.9
Date first	1902		Date last	2016		Obs	12
Pa first	323		Pa last	325		P.A. Now (θ)	325°
Sep first	11.4		Sep last	11.0		Sep. Now (ρ)	11"
Mag pri	10.80		Mag sec	13.30		delta mag (ΔM)	2.5		Spectral class	M4 (red)
Pri motion ra	+001		Sec motion ra	+001
Pri motion dec	-004		Sec motion dec	-005
Notes

rPM=0.196 (< 0.3, Physical double) This double is physical.

Precise pa	324.5		Precise sep	11.002		Constellation	Cygnus		SAO	69458
Tycho2	2671-02485-1		Gaia DR2	27834436736

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20078+3055	COU 31		1963	2	325	10.5	10.80	13.30	M4		200752.21+305411.9
20078+3055	COU 31		2002	3	325	11.1	10.80	13.30	M4		200752.21+305411.9
20078+3055	COU 31		2012	4	325	11.3	10.80	13.30	M4		200752.21+305411.9
20078+3055	COU 31		2015	6	326	11.1	10.80	13.30	M4		200752.21+305411.9
20078+3055	COU 31		2016	7	325	11.0	10.80	13.30	M4		200752.21+305411.9

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